This paper selected lumbers of Manchurian ash (Fraxinus rnandshurica), Manchurian walnut(Juglans mandshurica) and Spruce (Picea jezoensis var.kornarovii) for manufacturing glulam with water-borne polymeric-isocyanate ...This paper selected lumbers of Manchurian ash (Fraxinus rnandshurica), Manchurian walnut(Juglans mandshurica) and Spruce (Picea jezoensis var.kornarovii) for manufacturing glulam with water-borne polymeric-isocyanate adhesive to determine process variables. The process variables that includespecific pressure, pressing time and adhesive application amount influencing the shear strength of the glulam,were investigated through the orthogonal test. The results indicated that optimum process variables forglulam manufacturing were as follows: Specific pressure of 1.5 MPa for Spruce and 2.0 MPa both forManchurian ash and Manchurian walnut, pressing time of 60 min and adhesive application amount of 250 g/m2.展开更多
文摘This paper selected lumbers of Manchurian ash (Fraxinus rnandshurica), Manchurian walnut(Juglans mandshurica) and Spruce (Picea jezoensis var.kornarovii) for manufacturing glulam with water-borne polymeric-isocyanate adhesive to determine process variables. The process variables that includespecific pressure, pressing time and adhesive application amount influencing the shear strength of the glulam,were investigated through the orthogonal test. The results indicated that optimum process variables forglulam manufacturing were as follows: Specific pressure of 1.5 MPa for Spruce and 2.0 MPa both forManchurian ash and Manchurian walnut, pressing time of 60 min and adhesive application amount of 250 g/m2.
